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path: root/drivers/cpufreq/dbx500-cpufreq.c
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* cpufreq: dbx500: Round to closest available freqMats Fagerstrom2013-04-111-5/+5
| | | | | | | | | | When reading the cpu speed, round it to the closest available frequency from the table. Signed-off-by: Mats Fagerstrom <mats.fagerstrom@stericsson.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> Acked-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
* cpufreq: drivers: don't check range of target freq in .target()Viresh Kumar2013-04-021-6/+0
| | | | | | | | | | | Cpufreq core checks the range of target_freq before calling driver->target() and so we don't need to do it again. Remove it. Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> Acked-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
* cpufreq: Notify all policy->cpus in cpufreq_notify_transition()Viresh Kumar2013-04-021-4/+2
| | | | | | | | | | | | | | | | policy->cpus contains all online cpus that have single shared clock line. And their frequencies are always updated together. Many SMP system's cpufreq drivers take care of this in individual drivers but the best place for this code is in cpufreq core. This patch modifies cpufreq_notify_transition() to notify frequency change for all cpus in policy->cpus and hence updates all users of this API. Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> Acked-by: Stephen Warren <swarren@nvidia.com> Tested-by: Stephen Warren <swarren@nvidia.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
* Merge tag 'drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-socLinus Torvalds2013-02-211-7/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Pull ARM SoC driver specific changes from Arnd Bergmann: - Updates to the ux500 cpufreq code - Moving the u300 DMA controller driver to drivers/dma - Moving versatile express drivers out of arch/arm for sharing with arch/arm64 - Device tree bindings for the OMAP General Purpose Memory Controller * tag 'drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (27 commits) ARM: OMAP2+: gpmc: Add device tree documentation for elm handle ARM: OMAP2+: gpmc: add DT bindings for OneNAND ARM: OMAP2+: gpmc-onenand: drop __init annotation mtd: omap-onenand: pass device_node in platform data ARM: OMAP2+: Prevent potential crash if GPMC probe fails ARM: OMAP2+: gpmc: Remove unneeded of_node_put() arm: Move sp810.h to include/linux/amba/ ARM: OMAP: gpmc: add DT bindings for GPMC timings and NAND ARM: OMAP: gpmc: enable hwecc for AM33xx SoCs ARM: OMAP: gpmc-nand: drop __init annotation mtd: omap-nand: pass device_node in platform data ARM: OMAP: gpmc: don't create devices from initcall on DT dma: coh901318: cut down on platform data abstraction dma: coh901318: merge header files dma: coh901318: push definitions into driver dma: coh901318: push header down into the DMA subsystem dma: coh901318: skip hard-coded addresses dma: coh901318: remove hardcoded target addresses dma: coh901318: push platform data into driver dma: coh901318: create a proper platform data file ...
* cpufreq: db8500: set CPUFREQ_CONST_LOOPSFabio Baltieri2013-01-071-1/+1
| | | | | | | | | | | As ux500 is being converted to timer based delay loops, and the timer used is not depending on CPUs clock frequency, set cpufreq_driver flag CPUFREQ_CONST_LOOPS to prevent cpufreq rescaling loops_for_jiffies. Acked-by: John Stultz <john.stultz@linaro.org> Acked-by: Rafael J. Wysocki <rjw@sisk.pl> Signed-off-by: Fabio Baltieri <fabio.baltieri@linaro.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
* cpufreq: dbx500: Update file headerLee Jones2013-01-071-2/+2
| | | | | | | | | | Real simple patch to extend the ST-Ericsson copyright date and remove unnecessary extra commented lines. Signed-off-by: Lee Jones <lee.jones@linaro.org> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> Acked-by: Rafael J. Wysocki <rjw@sisk.pl> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
* cpufreq: dbx500: Minor code cleanupJonas Aaberg2013-01-071-10/+12
| | | | | | | | | | Some minor code cleanup and some minor changes to printed error messages. Signed-off-by: Jonas Aaberg <jonas.aberg@stericsson.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> Acked-by: Rafael J. Wysocki <rjw@sisk.pl> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
* cpufreq: dbx500: Move clk_get to probeUlf Hansson2013-01-071-15/+14
| | | | | | | | | | | The armss clock shall only be fetched at probe thus move this here. Same thing goes for the printing of the available frequencies. Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Reviewed-by: Jonas Aaberg <jonas.aberg@stericsson.com> Acked-by: Rafael J. Wysocki <rjw@sisk.pl> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
* cpufreq: Give driver used for dbx500 family a more generic nameLee Jones2013-01-071-0/+179
This driver doesn't only handle cpufreq functionality for the db8500 anymore. There are new variants which rely on it too. Let's make the name a bit more generic. Signed-off-by: Lee Jones <lee.jones@linaro.org> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> Acked-by: Rafael J. Wysocki <rjw@sisk.pl> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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